merrill



A. N. MERRILL.

Agricultural Boiler.

Patented May 31', 1870.

N. PETiRS. PHOTO-UTNOGRAFMER, WASHINGTON, I: 0y

ALLEN N. MERRILL, or BATAV IA. ILLINOIS.

Letters Patent .No. 103,639, dated May 31, 1870.

FARMERS BOILER. w

1 The Schedule referred to in these Letters Patent and making part'ofthe same.

I, ALLEN N. MERRILL, of Batavia, in the county of Kane and State ofIllinois, have invented a new and useful Improvement in Farmers Boilers,of which the following is a specification, reference being bad to theaccompanying drawing which forms apart thereof.

Nature and Object of the Invention.

The first part of my invention relates to the projecting front A of thefire-pot'B, containing a wood grate, so constructed and arranged that itcan be used in connection with the ,fire-pot B, for burning wood whendesired, or the fire-pot can be used for burning 'coal, as hereaftermore fully described, the object being shape of this removable piece issuch that, while it serves to divide the wood grate from the coalfire-pot, it alsoserves as a spout for feeding coal to the firepot.

The third part of my invention relates to the extension plate betweenthe kettle and its case, to regulate the passage of the heat, ashereafter described.

Description of the Drawing.

Figure 1 represents a front elevation of my farmers boiler.

Figure 2, a side elevation of the same.

Figure 3, a vertical sectional view, at the line :c 1.

Figure 4, a horizontal sectional view at the line y 3 Figures 5 and 6,views of the removable plate or partition P.

General Description.

0 is the bottom plate and hearth of the boiler, supinto the fire-pot B,and both grates are used; but, when it is desired to use coal, the plateI is placed in the position shown in fig. 3, and the part B is convertedinto a conical coal fire-pot, the upper part of the plate forming afeed-spout for-feeding the coal to the fire-pot. f f

I is the door to thefash-space'.

J, the door to the wood fire, and K, the door or slide to the coal fire.

L and M constitute a jacket, which may be made of one piece, or two, -asshown. It rests on the top of the fire-pot, and constitutes a holder forthe kettle N, as shown.

O is-the smoke-pipe.

R is the extension plate, and is sufficiently wide to fill the spacebetween the jacket M and the kettle N,

and, when the pieces are slid out, as indicated by the dotted lines infig. 4, the heat and smoke cannot go as direct to th'e'pipe O as whenthey are not slid out as so indicated.

The object of this extension plate is to control the heat, and retain itabout the kettle when desired.

S are rods for holding the different parts of the boiler together.

In manufacturing farmers boilers to be used for cooking feed for stock,I find it very desirable to make them so that either wood or coal can beused for fuel.

Having described the construction and operation of my improved boiler,

What I claim, and desire to secure by Letters Patent, is-

1. The projecting front A, in combination with the fire-pot B of afarmers boiler, when they are so constructed and arranged that eitherwood or coal can be used for fuel, substantially as specified and shown.

. 2. The removable partition plate 1?, when constructed and operating ina farmers boiler, substantially as and for the purpose set forth andshown.

3. The extension plate R, in combination with the jacket M and kettle N,when constructed and operating substantially as and for the purposesdescribed and shown.

' ALLEN N. MERRILL.

Witnesses:

LEWIS L. OOBURN, H. Bnons.

